[MV=PY]

I use these:

https://www.amazon.com/gp/product/B0145OQTPG/ref=oh_aui_search_detailpage?ie=UTF8&psc=1

[Jamestown1630]

Wonderful! Now I’ll be able to figure out why they both slink around looking guilty, when we come home at night - and how all their expensive toys wind up in their water bowl!